12418940 has 12 divisors (see below), whose sum is σ = 26079816. Its totient is φ = 4967568.

The previous prime is 12418937. The next prime is 12418961. The reversal of 12418940 is 4981421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310454 + ... + 310493.

It is an arithmetic number, because the mean of its divisors is an integer number (2173318).

Almost surely, 2^12418940 is an apocalyptic number.

12418940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12418940 is an abundant number, since it is smaller than the sum of its proper divisors (13660876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12418940 is a wasteful number, since it uses less digits than its factorization.

12418940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620956 (or 620954 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 12418940 is about 3524.0516454785. The cubic root of 12418940 is about 231.5766904412.

The spelling of 12418940 in words is "twelve million, four hundred eighteen thousand, nine hundred forty".